import java.util.Scanner;
/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 九转苍翎
 * Date: 2025/8/24
 * Time: 17:48
 */
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt(),m = in.nextInt(),q = in.nextInt();
        int[][] arr = new int[n + 1][m + 1];
        //1.读入数据
        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= m; j++) {
                arr[i][j] = in.nextInt();
            }
        }
        //2.预处理前缀和数组
        long[][] sum = new long[n + 1][m + 1];
        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= m; j++) {
                sum[i][j] = sum[i - 1][j] + sum[i][j - 1] + arr[i][j] - sum[i - 1][j - 1];
            }
        }
        while(q > 0){
            int x1 = in.nextInt(),y1 = in.nextInt(),x2 = in.nextInt(),y2 = in.nextInt();
            System.out.println(sum[x2][y2] - sum[x1 - 1][y2] - sum[x2][y1 - 1] + sum[x1 - 1][y1 - 1]);
            q--;
        }
    }
}